OCPP binding

===============

Provides

• Rust implementation of OCPP charger stack
• afb-binding micro service architecture and security model api-v4-

References

Specification from OpenCharge Alliance https://www.openchargealliance.org/downloads

• OCPP-1.6 ocpp-j-1.6-specification.pdf
• OCPP-2.0.1 https://www.oasis-open.org/committees/download.php/70384/OCPP-2.0.1_part4_ocpp-j-specification.pdf

This code is freely inspired from differences open-sources references:

• NodeJs https://github.com/mikuso/ocpp-rpc
• Python https://github.com/mobilityhouse/ocpp

Sample connecting Flow

• Connect WS http/upgrade ocpp16|occp201

  • provide adequate authentication (basic-auth, tls, ...)

• Boot notification (frontend -> backend)

  • {"BootNotification",{"chargePointVendor":"Tux-EvSe","chargePointModel":"Dummy testing client"}}
  • {"currentTime":"2023-09-29T11:42:31Z","interval":300,"status":"Accepted"}

• Status notification (frontend -> backend)

  • {"StatusNotification",{"connectorId":1,"errorCode":"NoError","status":"Available"}}
  • {}

• Data transfert (frontend -> backend)

  • {"DataTransfert", {"vendorId":"Bia","data":"Bia Power Grid SL. This is an emulated frontend"}}
  • {"status":"Accepted","data":"Bia Power Grid SL. This is an emulated frontend"}

testing server connectivity

AFB-client

# direct access to ocpp-backend
afb-client -d unix:@OCPP-SND
 Heartbeat {}
 Heartbeat-xxx {}

# access through afb-ocpp-binding
afb-client localhost:1234/api
 Heartbeat {}

Debug

Warning: user should be in wireshark group

wireshark -i eth0 -k -S -f "host ocpp.biastaging.com and tcp port 80"&
./afb-test/etc/binding-test-ocpp-16.sh

Bug/Feature Biapower

• do not accept connector-id=0 (should set tid=1 in config)
• do not accept cross heartbeat (should set tic=0 in config)
• shutdown websocket connection for any mismatch/invalid request
• keep sending charging profile even when json {"response":{"status":"accepted"}}
• dashboard web-ui is very slow to respond (require extra delay between test)